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Rodríguez-Caro JF, Afonso MM, Palenzuela JA. A Simple Entry to the 5,8-Disubstituted Indolizidine Skeleton via Hetero Diels-Alder Reaction. Molecules 2023; 28:7316. [PMID: 37959735 PMCID: PMC10647431 DOI: 10.3390/molecules28217316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 10/25/2023] [Accepted: 10/26/2023] [Indexed: 11/15/2023] Open
Abstract
The 5,8-disubstituted indolizidines are the largest family of indolizidines isolated from the skin of amphibians. These compounds exhibit interesting biological activities such as noncompetitive blockers of nicotinic receptors. In this paper, we present a short, simple, and general synthesis of these alkaloids based on the hetero Diels-Alder reaction between suitable monoactivated dienes and Δ1-pyrroline as the dienophile. The selectivity of the process is explained based on computational studies. Concise synthesis of the indolizidine alkaloid 181B from a hetero Diels-Alder reaction was accomplished in four steps.
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Affiliation(s)
| | - María M. Afonso
- Departamento de Química Orgánica, Instituto Universitario de Bio-Orgánica Antonio González (SINTESTER), Universidad de La Laguna, Avda. Astrofísico Fco. Sánchez 2, 38206 La Laguna, Spain;
| | - José Antonio Palenzuela
- Departamento de Química Orgánica, Instituto Universitario de Bio-Orgánica Antonio González (SINTESTER), Universidad de La Laguna, Avda. Astrofísico Fco. Sánchez 2, 38206 La Laguna, Spain;
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Hussaini SR, Chamala RR, Wang Z. The Eschenmoser sulfide contraction method and its application in the synthesis of natural products. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.06.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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3
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Bhat C, Tilve SG. Recent advances in the synthesis of naturally occurring pyrrolidines, pyrrolizidines and indolizidine alkaloids using proline as a unique chiral synthon. RSC Adv 2014. [DOI: 10.1039/c3ra44193h] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Ponpandian T, Muthusubramanian S. Sequential deprotection–cyclisation reaction: stereoselective synthesis of azabicyclic β-enamino ester derivatives and (−) indolizidine 209D. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.11.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Gracia S, Jerpan R, Pellet-Rostaing S, Popowycz F, Lemaire M. Straightforward synthesis of indolizidine alkaloid 167B. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.09.105] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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P. Michael J, B. de Koning C, L. Riley D. Formal Synthesis of (5R,8R,8aS)-Indolizidine 209I via Enaminones Incorporating Weinreb Amides. HETEROCYCLES 2009. [DOI: 10.3987/com-08-s(d)68] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Nelson A, Garraffo HM, Spande TF, Daly JW, Stevenson PJ. Facile synthesis of two diastereomeric indolizidines corresponding to the postulated structure of alkaloid 5,9E-259B from a Bufonid toad (Melanophryniscus). Beilstein J Org Chem 2008; 4:6. [PMID: 18208586 PMCID: PMC2244622 DOI: 10.1186/1860-5397-4-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2007] [Accepted: 01/21/2008] [Indexed: 11/10/2022] Open
Abstract
A short synthesis of the postulated structure for indolizidine alkaloid 259B with the hydrogens at C5 and C9 entgegen has been achieved with complete control of stereochemistry at C5. Both diastereoisomers at C8 were obtained, but neither proved to be the natural product. The comparison of the mass and FTIR spectral properties of the synthetic compounds to those of the natural material strongly suggest that the gross structure is correct and that the difference may be a branch in the C5 alkyl side-chain. The GC-retention times of the two synthetic compounds were markedly longer than that of the natural 5,9E-259B.
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Affiliation(s)
- Angela Nelson
- School of Chemistry and Chemical Engineering, Queens University, Belfast, BT9 5AG, Northern Ireland.
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Michael JP, Accone C, de Koning CB, van der Westhuyzen CW. Analogues of amphibian alkaloids: total synthesis of (5R,8S,8aS)-(-)-8-methyl-5-pentyloctahydroindolizine (8-epi-indolizidine 209B) and [(1S,4R,9aS)-(-)-4-pentyloctahydro-2H-quinolizin-1-yl]methanol. Beilstein J Org Chem 2008; 4:5. [PMID: 18205934 PMCID: PMC2241605 DOI: 10.1186/1860-5397-4-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2007] [Accepted: 01/18/2008] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Prior work from these laboratories has centred on the development of enaminones as versatile intermediates for the synthesis of alkaloids and other nitrogen-containing heterocycles. In this paper we describe the enantioselective synthesis of indolizidine and quinolizidine analogues of bicyclic amphibian alkaloids via pyrrolidinylidene- and piperidinylidene-containing enaminones. RESULTS Our previously reported synthesis of racemic 8-epi-indolizidine 209B has been extended to the laevorotatory enantiomer, (-)-9. Attempts to adapt the synthetic route in order to obtain quinolizidine analogues revealed that a key piperidinylidene-containing enaminone intermediate (+)-28 was less tractable than its pyrrolidinylidene counterpart, thereby necessitating modifications that included timing changes and additional protection-deprotection steps. A successful synthesis of [(1S,4R,9aS)-4-pentyloctahydro-2H-quinolizin-1-yl]methanol (-)-41 from the chiral amine tert-butyl (3R)-3-{benzyl [(1R)-1-phenylethyl]amino}octanoate (+)-14 was achieved in 14 steps and an overall yield of 20.4%. CONCLUSION The methodology reported in this article was successfully applied to the enantioselective synthesis of the title compounds. It paves the way for the total synthesis of a range of cis-5,8-disubstituted indolizidines and cis-1,4-disubstituted quinolizidines, as well as the naturally occurring trans-disubstituted alkaloids.
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Affiliation(s)
- Joseph P Michael
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, PO Wits 2050, South Africa.
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Remuson R. A convenient allylsilane-N-acyliminium route toward indolizidine and quinolizidine alkaloids. Beilstein J Org Chem 2007; 3:32. [PMID: 17910752 PMCID: PMC2148044 DOI: 10.1186/1860-5397-3-32] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2007] [Accepted: 10/02/2007] [Indexed: 11/28/2022] Open
Abstract
This review relates all the results that we obtained in the field of the total synthesis of indolizidine and quinolizidine alkaloids using a strategy of the addition of an allylsilane on an N-acyliminium ion. In this paper, we describe the synthesis of racemic indolizidine 167B and chiral indolizidines: (-)-indolizidines 167B, 195B, 223AB, (+)-monomorine, (-)-(3R,5S,8aS)-3-butyl-5-propylindolizidine and (-)-dendroprimine. Next, we relate the synthesis that we have developed in the quinolizidines field: (±)-myrtine and epimyrtine, (±)-lasubines I and II and chiral quinolizidines: (+)-myrtine, (-)-epimyrtine, (-)-lasubines I and II and (+)-subcosine II.
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Affiliation(s)
- Roland Remuson
- UMR 6504, CNRS Université Blaise Pascal (Clermont-Fd), 63177 Aubière Cédex, France.
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Dziedzic M, Małecka M, Furman B. Rhodium-Catalyzed Intramolecular Conjugate Addition of Vinylstannanes to 2,3-Dihydro-4-pyridones. An Efficient Route to Stereoselective Construction of Indolizidines. Org Lett 2005; 7:1725-7. [PMID: 15844891 DOI: 10.1021/ol050215j] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] [RhCl(cod)](2) is an effective catalyst for the intramolecular conjugate addition of vinylstannanes to 2,3-dihydro-4-pyridones under neutral conditions at room temperature. The reaction occurs in good yields, giving indolizidine skeletons with excellent diastereoselectivity. A stereochemical outcome observed in these cyclizations is proposed.
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Affiliation(s)
- Magdalena Dziedzic
- Institute of Organic Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Poland
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Michael JP, de Koning CB, van der Westhuyzen CW. Studies towards the enantioselective synthesis of 5,6,8-trisubstituted amphibian indolizidine alkaloids via enaminone intermediates. Org Biomol Chem 2005; 3:836-47. [PMID: 15731870 DOI: 10.1039/b418062c] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Investigations aimed at the enantioselective total synthesis of indolizidine 223A, a recently described 5,6,8-trisubstituted indolizidine alkaloid from a dendrobatid frog, are described. tert-Butyl (2R,3R)-3-amino-2-ethylhexanoate and its (2S,3R)-diastereomer, prepared in several steps from lithium N-benzyl-N-[(1R)-1-phenylethyl]amide and tert-butyl (2E)-hex-2-enoate by the Davies protocol, served as chiral building blocks from which two complementary suites of diastereomeric intermediates were made en route to pivotal tert-butyl 3-[2-(alkoxycarbonylmethylene)pyrrolidin-1-yl]-2-ethylhexanoate intermediates 20 and 21. Cyclisation of these enaminones, achieved by acid hydrolysis of the tert-butyl esters and activation of the liberated carboxylic acids as mixed anhydrides, afforded 6-ethyl-7-oxo-5-propyl-1,2,3,5,6,7-hexahydroindolizine-8-carboxylate esters 28 and 29. Several further transformations of these potential scaffolds for the synthesis of the target alkaloidal systems are also reported.
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Affiliation(s)
- Joseph P Michael
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg, P.O. Wits 2050, South Africa.
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David O, Calvet S, Chau F, Vanucci-Bacqué C, Fargeau-Bellassoued MC, Lhommet G. Novel Routes to Chiral 2-Alkoxy-5-/6- methoxycarbonylmethylidenepyrrolidines/-piperidines. J Org Chem 2004; 69:2888-91. [PMID: 15074948 DOI: 10.1021/jo049961c] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the results of a study aimed at the diastereoselective synthesis of chiral 2-alkoxy-5-/6-methoxycarbonylmethylidenepyrrolidines/-piperidines by condensation of chiral amines onto omega-oxo alkynoates and omega-oxo beta-keto esters.
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Affiliation(s)
- Olivier David
- Université P. et M. Curie, Chimie des Hétérocycles, UMR 7611, 4 Place Jussieu, 75252 Paris Cedex 05, France
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Vanucci-Bacqué C, David O, Fargeau-Bellassoued MC, Lhommet G. New Access to Chiral Cyclic w-Oxygenated b-Enamino Esters by Intramolecular Aminocyclisation Reactions. HETEROCYCLES 2004. [DOI: 10.3987/com-03-s(p)63] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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David O, Fargeau-Bellassoued MC, Lhommet G. A short and convenient synthesis of chiral heterocyclic β-enamino esters from halogeno acetylenic esters. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)00577-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Michael JP. Simple indolizidine and quinolizidine alkaloids. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2002; 55:91-258. [PMID: 11704985 DOI: 10.1016/s0099-9598(01)55004-x] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Affiliation(s)
- J P Michael
- Centre for Molecular Design, Department of Chemistry, University of the Witwatersrand, Wits 2050, South Africa
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Convergent asymmetric synthesis of indolizidines from (S)-5-(tosylmethyl)-2-pyrrolidinone: synthesis of (−)-δ-coniceine. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s0957-4166(01)00377-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Peroche S, Remuson R, Gelas-Mialhe Y, Gramain JC. A convenient allylsilane-N-acyliminium route toward 5-alkylindolizidines. Diastereoselective synthesis of (±)-indolizidine 167B. Tetrahedron Lett 2001. [DOI: 10.1016/s0040-4039(01)00822-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lhommet G, David O, Bellec C, Fargeau-Bellassoued MC. Diastereoselective Reduction of Chiral Enaminolactones: A Short and Convenient Route to Enantio-pure (+)-Tashiromine. HETEROCYCLES 2001. [DOI: 10.3987/com-01-9255] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Millet R, Meulon E, Goossens L, Houssin R, Hénichart JP, Rigo B. Conformationally constrained dipeptides. Obtention of enantiomerically pure 6-acetamido-5-oxo-1,2,3,5,6,7-hexahydro-3-indolizine carboxylic acid. J Heterocycl Chem 2000. [DOI: 10.1002/jhet.5570370613] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Millet R, Houssin R, Hénichart JP, Rigo B. A new scaffold for dipeptide β-turn mimetics: Expeditious synthesis of an unsaturated 6,5-fused bicyclic lactam. J Heterocycl Chem 1999. [DOI: 10.1002/jhet.5570360527] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Chênevert R, Mohammadi Ziarani G, Dasser M. Chemoenzymatic Enantioselective Synthesis of (-)-Indolizidine 167B. HETEROCYCLES 1999. [DOI: 10.3987/com-98-8421] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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